Color-singlet direct J/ψand ψ' production at Tevatron in the k_t factorization approach

F. Yuan, K. T. Chao

Direct $J/\psi$ and ${\psi }^{\prime }$ production rates at Tevatron are calculated in the $k_t$-factorization approach within the color-singlet model. In this approach, the production rates are enh…